Red or Green

Don't you sometimes wish your belly button was actually a light? Ok maybe I'm just crazy that way. I decided though that it would be really great if your belly button would let you know stuff about what's going on inside these crazy bodies of ours. Red - nothing happening - no ovulating or baby - depending on the time of the month. Green - get going you have some baby making to do or need to see a doctor because there is already a baby inside. None of this peeing on a stick every day to check fertility levels, or spitting on a "fern" reader. No waiting at the end, just instant answers. So I shared this idea with Aaron and he had one issue. Though red usually is negative and green is positive when you think of spaces red is usually occupied and green is vacant. So would the green light mean there is a baby or that the womb is vacant? So now people would get confused and start second guessing their belly button light and that's not helpful for anyone. So I guess we just need to put up with the system we have and come up with another use for the belly button. Any suggestions?